Abstract：
:Two new abietane-type diterpenoid o-quinones, 7beta-methoxyabieta-8,13-diene-11,12-dione-(20,6beta)-olide (rosmaquinone A) (1) and 7alpha-methoxyabieta-8,13-diene-11,12-dione-(20,6beta)-olide (rosmaquinone B) (2), together with six known compounds were isolated from the aerial parts of Rosmarinus officinalis L. The structures of the new compounds were determined by extensive spectroscopic analysis, including IR, UV, HR-EIMS, 1D and 2D 400 MHz NMR data (1H, 13C NMR, DEPT, 1H-1H COSY, HMQC, HMBC and NOEs).
journal_name
Phytochemistryjournal_title
Phytochemistryauthors
Mahmoud AA,Al-Shihry SS,Son BWdoi
10.1016/j.phytochem.2005.04.041subject
Has Abstractpub_date
2005-07-01 00:00:00pages
1685-90issue
14eissn
0031-9422issn
1873-3700pii
S0031-9422(05)00217-7journal_volume
66pub_type
杂志文章相关文献
PHYTOCHEMISTRY文献大全abstract：:Triterpenoid saponins, impatienosides A-G, together with 12 known saponins, were isolated from the whole plants of Impatiens siculifer. Their structures were established on the basis of extensive 1D and 2D NMR and MS analyses coupled with chemical degradation. Cytotoxic activities of the isolated saponins were evaluat...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2009.03.022
更新日期：2009-04-01 00:00:00
abstract：:Chemical examination of the leaves of Styrax ferrugineus yielded 5-[3''-(beta-D-glucopyranosyloxy)propyl]-7-methoxy-2-(3',4'-dimethoxyphenyl) benzofuran, along with the known nor-lignans 5-(3''-hydroxypropyl)-7-methoxy-2-(3',4'-methylenedioxyphenyl) benzofuran, 5-(3''-hydroxypropyl)-7-methoxy-2-(3',4'-dimethoxyphenyl)...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(00)00225-9
更新日期：2000-11-01 00:00:00
abstract：:Metabolomics or the large-scale phytochemical analysis of plants is reviewed in relation to functional genomics and systems biology. A historical account of the introduction and evolution of metabolite profiling into today's modern comprehensive metabolomics approach is provided. Many of the technologies used in metab...
journal_title：Phytochemistry
pub_type： 杂志文章,评审
doi：10.1016/s0031-9422(02)00708-2
更新日期：2003-03-01 00:00:00
abstract：:The hydrocarbon composition of the marine diatom Pleurosigma strigosum isolated from coastal Mediterranean sediments is described. A suite of five C(25) highly branched isoprenoid (HBI) alkenes with 2-5 double bonds were detected together with n-C(21:4) and n-C(21:5) alkenes and squalene. The analysis by (1)H and (13)...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2004.09.002
更新日期：2004-11-01 00:00:00
abstract：:Seven dammarane glycosides, gypenosides GC1 to GC7, together with ten known compounds, gypenosides V, XIV, XLII-XLVI, gynosaponins TN-1, -2, and gymnemaside VI, were isolated from the methanol extract of the aerial parts of Gynostemma pentaphyllum. Their structures were elucidated by both analysis of 1D and 2D NMR spe...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2011.04.003
更新日期：2011-08-01 00:00:00
abstract：:The triketone chemotype of manuka, Leptospermum scoparium (Myrtaceae), is commercially important because of its antimicrobial activity. Oils from 36 individual plants on the East Cape of New Zealand all showed similar high triketone contents (>20% total triketones) with little seasonal variation. Analyses of oils from...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2004.03.019
更新日期：2004-05-01 00:00:00
abstract：:Chemical investigation of stems of the mangrove plant, Pongamia pinnata, resulted in isolation and characterization of five structurally unusual flavonoids pongamones A-E, along with 16 known flavonoid metabolites. Their structures were determined on the basis of spectroscopic analyses and by comparison of their spect...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2006.05.016
更新日期：2006-07-01 00:00:00
abstract：:Phytoalexins are inducible chemical defenses produced by plants in response to diverse forms of stress, including microbial attack. Our search for phytoalexins from cruciferous plants resistant to economically important fungal diseases led us to examine stinkweed or pennycress (Thlaspi arvense), a potential source of ...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(03)00441-2
更新日期：2003-11-01 00:00:00
abstract：:In this study we were mirroring suggested in vivo phenomena of lignin-hemicellulose complex formation in vitro, by cross-linking Norway spruce (Picea abies) galactoglucomannans, xylans and lignin moieties to high molecular weight complexes by laccase treatment. We were able to observe the oxidation and cross-linking o...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2014.10.027
更新日期：2015-03-01 00:00:00
abstract：:Six species of Portuguese Ulex L. in a total of nineteen populations were studied by GC-EIMS as to their content in quinolizidine alkaloids. Sparteine, beta-isosparteine, jussiaeiine A, N-methylcytisine, cytisine, 5,6-dehydrolupanine, rhombifoline, lupanine, jussiaeiine B, N-formylcytisine, N-acetylcytisine, anagyrine...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2006.05.037
更新日期：2006-09-01 00:00:00
abstract：:Five undescribed lignans, three undescribed phenylethanoid glycosides and eight known compounds were isolated from the root of Isodon ternifolius (D.Don) Kudô (Lamiaceae). The structures of all of the isolated constituents were characterized by physical data analyses including NMR, MS and ECD. The anti-inflammatory ac...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2018.05.017
更新日期：2018-09-01 00:00:00
abstract：:The dichloromethane extract from leaves of Juniperus brevifolia, through chromatographic fractionations yield six compounds: 3beta-hydroxy-abieta-8,11,13-trien-7-one, 18-hydroxy-sandaracopimara-8(14),15-dien-7-one, sandaracopimara-8(14),15-dien-18-yl formate; and the first examples of sandaracopimaranes and abieta-8,1...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2007.07.026
更新日期：2008-01-01 00:00:00
abstract：:A method for the global analysis of yeast intracellular metabolites, based on electrospray mass spectrometry (ES-MS), has been developed. This has involved the optimization of methods for quenching metabolism in Saccharomyces cerevisiae and extracting the metabolites for analysis by positive-ion electrospray mass spec...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(02)00713-6
更新日期：2003-03-01 00:00:00
abstract：:Three previously undescribed compounds, maneonenes and isomaneonene derivatives; in addition to five known compounds, two cuparene, one chamigrene, and two cis-maneonenes were isolated from the Red Sea red alga Laurencia obtusa. The chemical structures of all unknown metabolites were characterized employing spectrosco...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2017.08.001
更新日期：2017-11-01 00:00:00
abstract：:Glucosinolate content of leaves and roots, diversity in leaf pubescence, and resistance to two near-isogenic lines of the flea beetle Phyllotreta nemorum with or without an R-gene, were determined for 27 accessions of 7 Barbarea taxa, i.e. B. stricta, B. orthoceras, B. intermedia, B. verna, B. vulgaris var. vulgaris, ...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(02)00750-1
更新日期：2003-05-01 00:00:00
abstract：:Three iridoid glycosides, picrorosides A (1), B (2) and C (3), and a cucurbitacin glycoside, scrophoside A (4), were isolated from the rhizomes of Neopicrorhiza scrophulariiflora (Scrophulariaceae), along with two known iridoid glycosides, picrosides I (5) and II (6), and three known cucurbitacin glycosides (7-9). The...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2006.09.015
更新日期：2006-12-01 00:00:00
abstract：:Two red Cystofilobasidium spp. isolated from spring sap-flows of Betula pendula were analysed for their carotenoid content. In Cystofilobasidium infirmominiatum, three unusual pigments were detected and identified by structure elucidation as oxidised torulene derivatives. These included 16'-hydroxytorulene and torular...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2007.05.019
更新日期：2007-10-01 00:00:00
abstract：:Five new oleanane-type saponins, polygalasaponins XLII-XLVI, along with two known saponins were isolated from the roots of Polygala glomerata Lour. The structures of polygalasaponins XLII-XLVI were elucidated as 3-O-beta-D-glucopyranosyl presenegenin 28-O-beta-D-xylopyranosyl-(1-->4)-alpha-L-rhamnopyranosyl- (1-->2)-{...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(97)00439-1
更新日期：1998-02-01 00:00:00
abstract：:The heterologous expression of cDNAs encoding the alkaloid biosynthetic enzymes, strictosidine synthase [EC 4.3.3.2] from Rauvolfia serpentina and the berberine bridge enzyme [(S)-reticuline: oxygen oxidoreductase (methylene-bridge-forming), EC 1.5.3.9] from Eschscholtzia californica, has been achieved in a cell cultu...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(00)94763-0
更新日期：1994-01-01 00:00:00
abstract：:A catechol oxidase from lemon balm (Melissa officinalis) moCO which only catalyzes the oxidation of catechols to quinones without hydroxylating tyrosine was purified. The molecular mass of the M. officinalis enzyme of 39,370 Da was obtained by MALDI mass spectrometry and the isoelectric point was determined to be 3.4....
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2012.05.022
更新日期：2012-09-01 00:00:00
abstract：:Ginseng occupies a prominent position in the list of best-selling natural products in the world. Compared to the long history of use and widespread research on Asian ginseng, the study of American ginseng is relatively limited. In the past decade, some promising advances have been achieved in understanding the chemist...
journal_title：Phytochemistry
pub_type： 杂志文章,评审
doi：10.1016/j.phytochem.2011.02.012
更新日期：2011-06-01 00:00:00
abstract：:Cyclization of methyl ent-8 alpha-hydroxylabd-13(16),14-dien-18-oate with m-chloroperbenzoic acid gave methyl (13S)-ent-16-hydroxy-8 alpha,13-epoxylabd-14-en-18-oate and its epimer at C-13. Biotransformation of the former (which exhibits antileishmania activity) with Rhizopus nigricans cultures produced the methyl (13...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/0031-9422(94)00549-9
更新日期：1995-01-01 00:00:00
abstract：:Two indole-alkaloid isoprenoids were isolated from extracts of Penicillium crustosum Thom grown on rice. Their structures were elucidated on the basis of various NMR experiments and by comparison to the structurally related penitrems. The two compounds, designated thomitrem A and thomitrem E, contain a 18(19)-double b...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(02)00369-2
更新日期：2002-12-01 00:00:00
abstract：:High diversity of fatty acid (FA) composition of endosymbiotic dinoflagellates of the Symbiodinium group (zooxanthellae) isolated from different cnidarian groups has been found. To explain this diversity, FA composition of the total lipids of pure symbiont fractions (SF) and host cell tissue fractions (HF) isolated fr...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2014.02.012
更新日期：2014-05-01 00:00:00
abstract：:The flavonoid rich grain of buckwheat (Fagopyrum esculentum Moench, Fam. Polygonaceae) is of high nutritional value. With the aim to improve its agronomic productivity, cultivars were crossed with the wild species F. homotropicum which, however, differs in its flavonoid content. The intention of this work was to deter...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2008.01.001
更新日期：2008-04-01 00:00:00
abstract：:Telomeres are nucleoprotein structures ensuring the stability of eukaryotic chromosome ends. Two protein families, TRFL (TFL-Like) and SMH (Single-Myb-Histone), containing a specific telobox motif in their Myb domain, have been identified as potential candidates involved in a functional nucleoprotein structure analogo...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2008.04.001
更新日期：2008-06-01 00:00:00
abstract：:Repeated fractionations of the methanol extract of the subterranean parts (rhizomes and roots) of Gentiana siphonantha afforded two new and five known secoiridoids, in addition to the widespread plant constituents beta-sitiosterol, daucosterol and oleanolic acid. The structures of the new acyl secoiridoid glycosides w...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(97)00225-2
更新日期：1997-11-01 00:00:00
abstract：:Six new iridoids, 6-O-alpha-L-(2"-O-, 3"-O-, 4"-O-tribenzoyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-, 3"-O-dibenzoyl, 4"-O-cis-p-coumaroyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-, 3"-O-dibenzoyl, 4"-O-trans-p-coumaroyl)rhamnopyranosylcatalpol, 6-O-alpha-L-(2"-O-benzoyl, 3"-O-trans-p-coumaroyl)rhamnopyranosylca...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/s0031-9422(00)00060-1
更新日期：2000-05-01 00:00:00
abstract：:Three C-17 diacetylenic compounds (1-3), one monoterpenoid (4), seven ceramides (leucoceramides A-G, 5a-g), six cerebrosides (leucocerebrosides A-F, 6a-f) and nine known compounds were isolated from the methanolic extract of Hydrocotyle leucocephala. Their structures were established by spectroscopic methods. The isol...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2006.03.004
更新日期：2006-06-01 00:00:00
abstract：:A high purity of β-D-glucan (80.8%) from hull-less barley (Hordeum vulgare L. var. nudum Hook. f.) (HBBG) was isolated by alkali extraction and multi-precipitation with ethanol. The molecular weight (Mw) of HBBG was determined as 571.4 kDa with a broad distribution (Mw/Mn = 1.6) by using HPSEC. According to methylatio...
journal_title：Phytochemistry
pub_type： 杂志文章
doi：10.1016/j.phytochem.2018.08.004
更新日期：2018-11-01 00:00:00
